CN111111293B - Material dehydrator capable of continuously feeding and discharging materials and adjusting pressure - Google Patents
Material dehydrator capable of continuously feeding and discharging materials and adjusting pressure Download PDFInfo
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- CN111111293B CN111111293B CN202010048957.9A CN202010048957A CN111111293B CN 111111293 B CN111111293 B CN 111111293B CN 202010048957 A CN202010048957 A CN 202010048957A CN 111111293 B CN111111293 B CN 111111293B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/41—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/808—Accessories integrally combined with devices for controlling the filtration by pressure measuring
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a material dehydrator capable of continuously feeding and discharging materials and adjusting pressure, which comprises a frame, a feeding mechanism and a squeezing mechanism, the squeezing mechanism comprises an upper chain plate and a lower chain plate which are arranged on the frame and can circularly move along an annular shape, the space between the upper chain plate and the lower chain plate is a material squeezing area, the material squeezing area is provided with a material inlet and a material outlet, the feeding mechanism is used for conveying materials to the material inlet, the material squeezing area is divided into a plurality of material squeezing sections from the material inlet to the material outlet, each material squeezing section is provided with a pressure adjusting mechanism, the pressure adjusting mechanism comprises an adjusting seat capable of moving up and down, and the adjusting seat is used for adjusting the distance between the upper chain plate and the lower chain plate of each material squeezing section. The invention improves the dehydration efficiency of the material, has high productivity, can provide larger material squeezing force and has strong dehydration capability.
Description
Technical Field
The invention relates to a dehydrator, in particular to a material dehydrator capable of continuously feeding and discharging materials and adjusting pressure.
Background
The dehydrator is a large-scale device in the fields of food processing, chemical industry, medicine, textile, metallurgy, mine, environmental protection and the like. At present, the types of the dehydrator are mainly classified into a belt dehydrator, a centrifugal dehydrator, a stacked screw dehydrator, and a plate-and-frame filter press. The first three kinds of dewatering machines have low energy consumption, and are easy to realize continuous feeding and discharging, so that the yield is high, but the provided dewatering pressure is low, and the dewatering capacity is low. The water content of the dehydrated material is generally about 80 percent, even higher. The plate-and-frame filter press is generally divided into a diaphragm filter press and a plate-and-frame filter press, can provide larger dehydration pressure, has high dehydration capacity, and can ensure that the water content of the dehydrated material is below 60 percent. However, the plate and frame filter press cannot continuously feed, and once dewatering is performed after each feeding, the feeding and dewatering time is long, and the plate and frame filter press has the defects of high energy consumption, low production energy, and high manufacturing cost and running cost.
Sludge dewatering machines are used in the field of environmental protection, sludge produced in industrial activities is dewatered in sludge treatment plants, and then dewatered sludge blocks are transported to landfill sites. However, the water content of the sludge treated by the belt type dehydrator, the centrifugal dehydrator and the screw-stacking dehydrator is high, and the sludge cannot reach the national landfill standard, and a plate-and-frame filter press is required to perform dehydration treatment again, so that the transportation and treatment costs of the sludge are increased.
In summary, the existing dewaterers for sludge treatment have defects, and the development requirement of deep dewatering is gradually not met, so that the development of a deep dewaterer with low energy consumption and high efficiency is urgently needed.
Disclosure of Invention
The invention provides a material dehydrator capable of continuously feeding and discharging materials and adjusting pressure, which is a chain plate type dehydrator and has the characteristics of high pressure and high dehydration performance of a plate-and-frame filter press, and the function of continuously feeding and discharging materials.
The technical scheme of the invention is as follows:
the utility model provides a continuous business turn over material and adjustable pressure's material hydroextractor, the hydroextractor includes frame, feeding mechanism and squeezing mechanism, squeezing mechanism including installing last link joint and the lower link joint that just can follow annular circulation and remove in the frame, go up the link joint with space between the link joint is the material and squeezes the district down, the material squeeze the district for having a material entry and material export just the material entry is wide the material export is narrow, goes up the gradual increase that is a contained angle between link joint and the lower link joint and squeezes the district, feeding mechanism is used for carrying the material extremely the material entry, the material squeeze the district follow the material entry extremely the material export is divided into a plurality of materials and squeezes the section, every material squeezes the section and all is equipped with a pressure adjustment mechanism, pressure adjustment mechanism including the regulation seat that can reciprocate, the regulation seat be used for adjusting each material section go up the link joint with interval between the lower link joint.
The chain plate type dehydrator, also called as a crawler-type dehydrator, is characterized in that a material squeezing area is formed between an upper chain plate and a lower chain plate, a material is delivered to a position between the upper chain plate and the lower chain plate of a material inlet by a feeding mechanism, then the material moves to a material outlet along with the movement of the upper chain plate and the lower chain plate, the upper chain plate and the lower chain plate squeeze the material to complete dehydration in the moving process, and the material squeezing force from the material inlet to the material outlet is gradually increased, the material pressing force of each material pressing section can be adjusted.
The invention can also be designed by the following optimization and improvement:
the upper chain plate is wound on an upper chain plate driving wheel and an upper chain plate adjusting wheel, the lower chain plate is wound on a lower chain plate driving wheel and a lower chain plate adjusting wheel, the upper chain plate driving wheel, the upper chain plate adjusting wheel, the lower chain plate driving wheel and the lower chain plate adjusting wheel are arranged on the frame, the mounting positions of the upper chain plate adjusting wheel and the lower chain plate adjusting wheel can be finely adjusted on the frame, an upper stress plate frame which is arranged on the frame and used for bearing the pressure of the upper chain plate is arranged between the upper chain plate driving wheel and the upper chain plate adjusting wheel, a lower stress plate frame which is arranged on the frame and used for bearing the pressure of the lower chain plate is arranged between the lower chain plate driving wheel and the lower chain plate adjusting wheel, the pressure adjusting mechanism is arranged between the upper stress plate frame and the upper chain plate, and is positioned below the upper stress plate frame, the upper chain plate and the lower chain plate adopt load chain plates, when materials are squeezed, the stress of the upper chain plate is transmitted to the upper stress plate frame through the pressure adjusting mechanism, and the stress of the lower chain plate is transmitted to the lower stress plate frame.
Preferably, the pressure adjusting mechanism further comprises an adjusting rubber mat and a guide shaft, wherein the adjusting rubber mat is hollow inside and can be filled with hydraulic oil or water, the adjusting rubber mat is positioned above the adjusting seat, and the adjusting rubber pad of each pressure adjusting mechanism is communicated with the corresponding limiting oil cylinder which is connected with a constant pressure control system, the constant pressure control system controls the volume of the hydraulic oil or water introduced into the adjusting rubber mat through the limiting oil cylinder to control the up-and-down displacement of the adjusting seat, the upper stress plate frame is a rectangular box body which is hollow inside and is provided with a rib plate, the lower end of the guide shaft is fixedly connected with the adjusting seat, the upper end of the guide shaft is connected in the upper stress plate frame in a sliding way, and the middle upper end of the guide shaft is sleeved with a spring for resetting the guide shaft, the upper end of the spring is connected with the guide shaft in a propping manner, and the lower end of the spring is connected with the upper stressed plate frame in a propping manner. The adjusting rubber mat can be designed to be a hollow diaphragm interlayer, and oil or water is injected into the interlayer through the limit oil cylinder to enable the pressure of the adjusting rubber mat to be stabilized within a pressure range set by the constant pressure control system. When oil or water is injected into the adjusting rubber mat, the adjusting rubber mat expands, the expanded adjusting rubber mat pushes the adjusting seat below the adjusting rubber mat to move downwards, the guide shaft slides downwards, and the spring is stretched; meanwhile, the lower end of the adjusting seat can be provided with a rolling bearing which is contacted with an upper chain plate below, when the upper chain plate moves, rolling friction exists between the upper chain plate and the adjusting seat, and the upper chain plate can be pushed to move downwards by moving the adjusting seat downwards, so that the distance between the upper chain plate and the lower chain plate is reduced, and the material squeezing force of the section can be improved; after the oil or water in the rubber cushion is regulated to be discharged to the limiting oil cylinder, the volume of the rubber cushion is regulated to shrink, the regulating seat moves upwards under the elastic force of the spring, the upper chain plate also moves upwards, the distance between the upper chain plate and the lower chain plate is increased, and the material squeezing force of the section can be reduced.
The feeding thrust provided by the feeding mechanism is stabilized in a specific range, and in the material squeezing area, the backward advancing resistance of the material is larger, so that the material is possibly blocked in the latter half of the material squeezing area and can not be fed. The first way to solve this problem is to increase the feeding thrust of the feeding mechanism, which also increases the energy consumption. The invention adopts a second mode, a material pressure relief area is arranged between every two adjacent material pressing sections, the material pressure relief area is positioned in the interval between every two adjacent material pressing sections and is not influenced by a pressure joint adjusting mechanism, so the distance between the upper chain plate and the lower chain plate in the material pressure relief area can be kept unchanged, namely the upper chain plate in the material pressure relief area does not move along with the up-and-down movement of an adjusting seat of the pressure adjusting mechanism, and the mode can save energy sources on the premise of not influencing continuous feeding.
The material squeezing area is sequentially provided with a low-pressure material squeezing section, a medium-pressure material squeezing section, a high-pressure material squeezing section and a high-pressure maintaining material squeezing section from the material inlet to the material outlet, the distance between the upper chain plate and the lower chain plate in the material squeezing area from the low-pressure material squeezing section to the high-pressure material squeezing section is gradually reduced, and the upper chain plate and the lower chain plate are parallel in the material squeezing area of the high-pressure maintaining material squeezing section. Namely, under initial condition, when pressure adjustment mechanism was out of work, squeezed the section to the high pressure material from the low pressure material and squeezed the section, go up and be an acute angle between link joint and the lower link joint, the more closely interval between link joint and the lower link joint is big more in the material entry, squeeze the section at high pressure pressurize material, go up the link joint and equal everywhere with the interval between the lower link joint, the squeezing force that the material received is even.
The upper chain plate is covered with an upper water passing rubber pad on the surface, the lower chain plate is covered with a lower water passing rubber pad on the surface, and the upper water passing rubber pad and the lower water passing rubber pad are provided with drainage gaps which pass through two ends of the upper chain plate or the lower chain plate in the moving direction.
The invention can also segment the materials entering the material squeezing area, and the implementation mode is as follows: the upper water passing rubber mat is provided with a plurality of segmented limiting grooves, the segmented limiting grooves are uniformly distributed on the upper water passing rubber mat, the lower water passing rubber mat is provided with a plurality of segmented limiting bosses matched with the segmented limiting grooves in shape, and the segmented limiting bosses are uniformly distributed on the lower water passing rubber mat. The segmentation limit groove is matched with the segmentation limit boss, so that materials entering the material squeezing mechanism can be segmented, and the materials are segmented.
The outer side of the upper water passing rubber mat is also provided with at least one layer of upper filter cloth belt, the upper filter cloth belt is wound on an upper filter cloth belt driving wheel and an upper filter cloth belt adjusting wheel, and the upper filter cloth belt and the upper chain plate synchronously move; the outer side of the lower water passing rubber mat is also provided with at least one layer of lower filter cloth belt, the lower filter cloth belt is wound on a lower filter cloth belt driving wheel and a lower filter cloth belt adjusting wheel, and the lower filter cloth belt and the lower chain plate move synchronously;
when the material is dehydrated, water is filtered by the upper filter cloth belt and the lower filter cloth belt and then flows to the two ends of the upper chain plate or the lower chain plate in the motion direction through the drainage gaps of the upper water passing rubber pad and the lower water passing rubber pad respectively.
The upper filter cloth belt driving wheel and the lower filter cloth belt driving wheel are both positioned at a material outlet of the material squeezing area, a hopper is arranged below the material outlet, materials can fall into the hopper, dirt scraping plates are arranged on the upper filter cloth belt driving wheel and the lower filter cloth belt driving wheel, and the materials adhered to the upper filter cloth belt and the lower filter cloth belt can fall into the hopper after being scraped by the dirt scraping plates.
The feeding mechanism comprises a stirring barrel, a material conveying device and a material leveling box, wherein an inlet of the material conveying device is connected with an outlet of the stirring barrel, an outlet of the material conveying device is connected with an inlet of the material leveling box, and an outlet of the material leveling box is positioned at the material inlet of the material squeezing area. Wherein material conveyor can select the spiral pusher among the prior art for use, and material flat incasement is a square passageway, and the material is through spiral pusher propelling movement to material flat case, and the material is followed material flat case and is come out the back and is reshaped the material of square form and then get into the material and squeeze the district.
The invention has the following remarkable effects:
1. the invention can not only continuously feed and discharge materials and improve the efficiency of material dehydration, but also provide larger material squeezing force to deeply dehydrate the materials.
2. The invention can be used for sludge dehydration, and the water content of the final sludge is controlled below 50% by arranging a plurality of material squeezing sections and respectively adjusting the material squeezing force of each material squeezing section by the pressure adjusting mechanism and accurately controlling the whole dehydration process of the materials.
3. The material pressure relief area is arranged, so that the energy cost of the feeding mechanism can be reduced, the cost of deep dehydration treatment of sludge is further reduced, and the transportation cost of the dehydrated sludge is also reduced due to the high dehydration rate of the sludge dewatering device.
4. The dehydration process of the invention realizes full automation and reduces the labor intensity of workers.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are necessary in the embodiments will be briefly described below, which show only some examples of the invention and therefore should not be considered as limiting in scope, from which other related drawings can also be derived without inventive effort;
FIG. 1 is a sectional view of a material dehydrator with continuous feeding and discharging and adjustable pressure according to the present invention, wherein the sectional view is a sectional view along the length direction of the dehydrator;
FIG. 2 is an enlarged view of a circled portion of FIG. 1;
FIG. 3 is a cross-sectional view of the upper and lower link plates and associated stationary components of the continuous feed and discharge, pressure-regulated material dehydrator of the present invention;
FIG. 4 is a schematic structural view of a pressure adjusting mechanism of the present invention, which is a cross-sectional view in the width direction of the dehydrator;
FIG. 5 is a structural layout view of the upper and lower link plates, the upper and lower water passing rubber mats, and the upper and lower cloth filtering belts according to the present invention;
FIG. 6 is an enlarged view of a circled portion of FIG. 5;
FIG. 7 is a top view of a lower flood rubber pad used in the present invention;
FIG. 8 is a cross-sectional view C-C of FIG. 7;
fig. 9 is a cross-sectional view taken along line D-D of fig. 7.
Description of reference numerals:
1. a stirring barrel; 2. a material conveying device; 3. material leveling box; 4. a frame; 5. a chain plate is arranged; 5a, an upper chain plate shaft; 6. an upper stressed plate frame; 6a, an upper fixing plate; 7. an upper rolling bearing; 7a, an upper bearing fixing seat; 8. putting on a water-passing rubber mat; 8a, segmenting limiting grooves; 9. putting a filter cloth belt; 10. a chain feeding plate driving wheel; 11. a drive device; 12. an upper filter cloth belt driving wheel; 13. an upper dirt scraping plate; 14. an upper chain plate adjusting wheel; 15. adjusting wheels of the upper filter cloth belts; 16. cleaning a tube by an upper filter cloth belt; 17. an upper drainage tank; 18. a lower chain plate; 18a, a lower link plate shaft; 19. a lower stress plate frame; 20. a lower rolling bearing; 20a, a lower bearing fixing seat; 21. passing the water rubber cushion; 21a, segmenting a limiting boss; 22. a lower filter cloth belt; 23. a lower chain plate driving wheel; 24. a lower filter cloth belt driving wheel; 25. a lower dirt scraping plate; 26. a lower chain plate adjusting wheel; 27. a lower filter cloth belt adjusting wheel; 28. a lower filter cloth belt cleaning pipe; 29. a lower drainage channel; 30. a hopper; 31. an adjusting seat; 32. a regulating seat gland; 33. adjusting the rubber mat; 34. a movable block; 35. a guide shaft; 36 springs; 37. a spring gland; 38. a limit oil cylinder; 39. a constant pressure control system; 40. and (4) sludge.
Detailed Description
As shown in fig. 1 to 4, a material dehydrator capable of continuously feeding and discharging materials and adjusting pressure comprises a frame 4, a feeding mechanism and a squeezing mechanism, wherein the squeezing mechanism comprises an upper chain plate 5 and a lower chain plate 18 which are installed on the frame 4 and can circularly move along a ring shape, the space between the upper chain plate 5 and the lower chain plate 18 is a material squeezing area, the material squeezing area is provided with a material inlet a and a material outlet B, the material inlet a is wide, the material outlet B is narrow, a gradually-increased squeezing area with an included angle is formed between the upper chain plate 5 and the lower chain plate 18, the feeding mechanism is used for conveying materials to the material inlet a, the material squeezing area is divided into a plurality of material squeezing sections from the material inlet a to the material outlet B, each material squeezing section is provided with a pressure adjusting mechanism, the pressure adjusting mechanism comprises an adjusting seat 31 capable of moving up and down, the adjusting seat 31 is used for adjusting the distance between the upper chain plate 5 and the lower chain plate 18 of each material pressing section.
The feeding mechanism comprises a stirring barrel 1, a material conveying device 2 and a material leveling box 3, wherein an inlet of the material conveying device 2 is connected with an outlet of the stirring barrel 1, an outlet of the material conveying device 2 is connected with an inlet of the material leveling box 3, and an outlet of the material leveling box 3 is positioned at a material inlet A of the material squeezing area; wherein, a stirring device is arranged in the stirring barrel 1, and the stirring device comprises but is not limited to a stirring device with stirring function such as mechanical stirring, air stirring and the like; the material conveying device 2 comprises but is not limited to a spiral pusher containing a screw pump, and can also be a pusher adopting a feeding mode such as a rotor pump, a diaphragm pump and the like; the inside square passageway that is of material levelling box 3, material through material conveyor 2 propelling movement to material levelling box 3, the material is followed material levelling box 3 and is come out the back and is become the material of square form by the plastic and then get into the material and squeeze the district.
In the preferred embodiment, the upper link plate 5 is wound around an upper link plate driving wheel 10 and an upper link plate adjusting wheel 14, and the driving device 11 drives the upper link plate driving wheel 10 to rotate. The lower chain plate 18 is wound on a lower chain plate driving wheel 23 and a lower chain plate adjusting wheel 26, the upper chain plate driving wheel 10, the upper chain plate adjusting wheel 14, the lower chain plate driving wheel 23 and the lower chain plate adjusting wheel 26 are installed on the frame 4, an upper stressed plate frame 6 which is installed on the frame 4 and used for bearing the pressure of the upper chain plate 5 is arranged between the upper chain plate driving wheel 10 and the upper chain plate adjusting wheel 14, a lower stressed plate frame 19 which is installed on the frame 4 and used for bearing the pressure of the lower chain plate 18 is arranged between the lower chain plate driving wheel 23 and the lower chain plate adjusting wheel 26, and the pressure adjusting mechanism is arranged between the upper stressed plate frame 6 and the upper chain plate 5 and is located below the upper stressed plate frame 6.
As shown in fig. 4, the upper stressed plate frame 6 is a rectangular box body which is hollow inside and provided with rib plates, and comprises an upper fixed plate 6a, a lower fixed plate and the rib plates which connect the upper fixed plate 6a and the lower fixed plate. The pressure adjusting mechanism further comprises a guide shaft 35 and an adjusting rubber mat 33 which is hollow inside and can be filled with hydraulic oil, the lower end of the guide shaft 35 is fixedly connected with the adjusting seat 31, the upper end of the guide shaft 35 is connected in the upper stress plate frame 6 in a sliding mode, the upper end of the guide shaft 35 is sleeved with a spring 36 used for enabling the guide shaft 35 to reset, the upper end of the spring 36 is connected with the guide shaft 35 in a propping mode, and the upper end of the guide shaft 35 can be connected with a spring gland 37 used for limiting the upper end of the spring 36; the lower end of the spring 36 is abutted to the upper stress plate frame 6, specifically, the lower fixing plate of the upper stress plate frame 6 is provided with a hollow cylindrical tube, the lower end of the guide shaft 35 extends into the cylindrical tube and is connected with the adjusting seat 31, and the lower end of the spring 36 can be abutted to the upper end surface of the cylindrical tube. Adjust the cushion 33 and be located adjust seat 31 top, it is spacing by adjusting seat gland 32 to adjust the cushion 33 both sides, adjusts seat gland 32 and connects the bottom plate of atress sheet frame 6, and the lower extreme withstands the up end of adjusting seat 31, still can set up a movable block 34 between adjusting cushion 33 and the bottom plate, and movable block 34 avoids adjusting cushion 33 and bottom plate direct contact, plays the guard action to adjusting cushion 33. The adjusting rubber pad 33 of each pressure adjusting mechanism is communicated with the corresponding limiting oil cylinder 38, the limiting oil cylinder 38 is connected with a constant pressure control system 39, and the constant pressure control system 39 controls the volume of hydraulic oil introduced into the adjusting rubber pad 33 through the limiting oil cylinder 38 so as to control the up-and-down displacement of the adjusting seat 31. Wherein the hydraulic oil in the conditioning rubber pad 33 can be replaced by water or other liquid.
When oil or water is injected into the adjusting rubber mat 33, the adjusting rubber mat 33 expands, the expanded adjusting rubber mat 33 pushes the adjusting seat 31 below the adjusting rubber mat to move downwards, the guide shaft 35 slides downwards at the same time, and the spring 36 is stretched; the lower end of the adjusting seat 31 can be provided with an upper rolling bearing 7 through an upper bearing fixing seat 7a, the upper rolling bearing 7 is in contact with an upper chain plate 5 below, when the upper chain plate 5 moves, rolling friction exists between the upper chain plate 5 and the adjusting seat 31, and the adjusting seat 31 moves downwards to push the upper chain plate 5 to move downwards, so that the distance between the upper chain plate 5 and the lower chain plate 18 is reduced, and the material squeezing force of the section can be improved; after the oil or water in the adjusting rubber pad 33 is discharged to the limiting oil cylinder 38, the adjusting rubber pad 33 is adjusted to shrink in volume, the adjusting seat 31 moves upwards under the elastic force of the spring 36, the upper chain plate 5 also moves upwards, the distance between the upper chain plate 5 and the lower chain plate 18 is increased, and the material squeezing force of the section can be reduced.
In this embodiment, the upper chain plate 5 is an annular chain plate connected in series by a plurality of upper chain plate shafts 5a and connected end to end; the lower link plate 18 is an endless link plate connected in series by a plurality of lower link plate shafts 18a and connected end to end. The structure of the lower stressed plate frame 19 is similar to that of the upper stressed plate frame 6, but the lower rolling bearing 20 is directly connected with the lower stressed plate frame 19 through a lower bearing fixing seat 20a, and rolling friction exists between the lower chain plate 18 and the lower stressed plate frame 19.
As a preferred embodiment, the material squeezing area is a low-pressure material squeezing section, a medium-pressure material squeezing section, a high-pressure material squeezing section and a high-pressure maintaining material squeezing section in sequence from the material inlet a to the material outlet B, the distance between the upper chain plate 5 and the lower chain plate 18 is gradually reduced in a material squeezing section from the low-pressure material squeezing section to the high-pressure material squeezing section, and the upper chain plate 5 and the lower chain plate 18 are parallel in the material squeezing section of the high-pressure maintaining material squeezing section.
Every two adjacent material squeezing sections in four material squeezing sections of a low-pressure material squeezing section, a medium-pressure material squeezing section, a high-pressure material squeezing section and a high-pressure maintaining material squeezing section are respectively provided with a material pressure relief area, the distance between an upper chain plate 5 and a lower chain plate 18 in the material pressure relief areas is kept unchanged, namely the material pressure relief areas are positioned in the intervals of the adjacent material squeezing sections and are not influenced by a pressure section adjusting mechanism, and the upper chain plate 5 in the material pressure relief areas does not move along with the up-and-down movement of an adjusting seat 31 of the pressure adjusting mechanism.
The surface of the upper chain plate 5 of this embodiment is covered with the upper water passing rubber mat 8, the surface of the lower chain plate 18 is covered with the lower water passing rubber mat 21, and the upper water passing rubber mat 8 and the lower water passing rubber mat 21 both have a drainage gap passing through both ends of the upper chain plate 5 or the lower chain plate 18 in the moving direction. The water squeezed from the material flows out of the drainage gap.
As shown in fig. 5 to 9, the upper water passing rubber mat 8 is provided with a plurality of segmented limiting grooves 8a, the plurality of segmented limiting grooves 8a are uniformly distributed on the upper water passing rubber mat 8, the lower water passing rubber mat 21 is provided with a plurality of segmented limiting bosses 21a matched with the segmented limiting grooves 8a in shape, and the plurality of segmented limiting bosses 21a are uniformly distributed on the lower water passing rubber mat 21. The sectional limiting groove 8a is matched with the sectional limiting boss 21a, so that the sludge 40 entering the material squeezing area can be cut off, the sludge 40 is segmented, the reverse movement of the sludge relative to the upper chain plate and the lower chain plate is reduced, and the feeding effect is improved. The ratio of the distance between the upper link plate 5 and the lower link plate 18 in fig. 5 is larger than that in practical use, and the distance is increased in fig. 5 to more clearly show the positional relationship between the respective portions.
The outer side of the upper water passing rubber mat 8 is also provided with at least one layer of upper filter cloth belt 9, the upper filter cloth belt 9 is wound on an upper filter cloth belt driving wheel 12 and an upper filter cloth belt adjusting wheel 15, and the upper filter cloth belt 9 and the upper chain plate 5 move synchronously;
the outer side of the lower water passing rubber cushion 21 is also provided with at least one layer of lower filter cloth belt 22, the lower filter cloth belt is wound on a lower filter cloth belt driving wheel 24 and a lower filter cloth belt adjusting wheel 27, and the lower filter cloth belt 22 and the lower chain plate 18 move synchronously;
when the material is dehydrated, water is filtered by the upper filter cloth belt 9 and the lower filter cloth belt 22 and then flows to the two ends of the upper chain plate 5 or the lower chain plate 18 in the moving direction through the drainage gaps of the upper water passing rubber pad 8 and the lower water passing rubber pad 21 respectively.
In addition, as shown in FIG. 1,
go up filter cloth area drive wheel 12, filter cloth area drive wheel 24 all is located the material export B department in material squeezing zone has placed hopper 30 below the material export B department, go up filter cloth area drive wheel 12 with all be equipped with the dirt scraper down on the filter cloth drive wheel 24, go up dirt scraper 13 promptly and scrape dirt board 25 down. Before the upper filter cloth belt 9 and the lower filter cloth belt 22 circularly move and wind back to the material inlet A, the sludge adhered to the upper filter cloth belt 9 and the lower filter cloth belt 22 needs to be cleaned, so that an upper filter cloth belt cleaning pipe 16 is arranged on the upper filter cloth belt 9 and close to the upper filter cloth belt adjusting wheel 15, the upper filter cloth belt cleaning pipe 16 is used for cleaning the upper filter cloth belt, and cleaning water flows away from an upper water drainage channel 17; similarly, a lower cloth belt cleaning pipe 28 is provided on the lower cloth belt 22 at a position close to the lower cloth belt adjusting wheel 27, and cleaning water flows from a lower water drainage tank 29.
In the embodiment, the whole squeezing process is explained by taking sludge as a material to be treated, the sludge enters a low-pressure material squeezing section from a material inlet A, after a part of water in the sludge is squeezed, the whole thickness of the sludge is reduced, the sludge is continuously squeezed to further dewater the sludge, the distance between an upper chain plate and a lower chain plate in a subsequent material squeezing area needs to be gradually reduced, and the like. In order to further control the pressure of each material pressing section, the four material pressing sections are respectively provided with a pressure adjusting mechanism, the pressure adjusting mechanisms are controlled by a constant pressure control system 39 through a limiting oil cylinder 38 to adjust the oil pressure in a rubber pad 33 to be kept at a system preset value, the volume expansion and contraction of the rubber pad 33 are adjusted to influence the up-and-down displacement of an adjusting seat 31, and the adjusting seat 31 further influences the distance between an upper chain plate 5 and a lower chain plate 18 of each material pressing section, so that the distance between the upper chain plate and the lower chain plate can be adjusted. The invention can track and monitor the material squeezing force of each material squeezing section in real time, adjust the material squeezing force to the range set by the system and accurately control the dehydration process of the sludge, and the constant pressure control system 39 of the invention is mainly composed of an oil pressure gauge, a valve, an oil pump motor, an energy accumulator and the like in the prior art and is used for monitoring and adjusting the oil pressure in the limit oil cylinder 38 and the adjusting rubber pad 33.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention, and the embodiments of the present invention are not limited thereto. It will be understood that various other modifications, substitutions and alterations can be made in the above-described arrangements without departing from the basic technical spirit of the invention, as would be understood by those skilled in the art from the above description of the invention.
Claims (8)
1. The utility model provides a material hydroextractor of continuous business turn over material and adjustable pressure which characterized in that, the hydroextractor includes frame (4), feeding mechanism and squeezes the mechanism, squeeze the mechanism including install last link joint board (5) and lower link joint board (18) that just can follow annular circulation and remove in frame (4), go up link joint (5) with space between link joint board (18) is the material and squeezes the district down, the material squeeze the district for having a material entry (A) and material export (B) just material entry (A) width material export (B) are narrow, go up the gradual increase that is a contained angle between link joint board (5) and lower link joint board (18) and squeeze the district, the material squeezes the district and follow material entry (A) to material export (B) in proper order for low pressure material squeezes the section, middling pressure material squeezes the section, high pressure material squeezes the section and high pressure pressurize material squeezes the section, the space between the upper chain plate (5) and the lower chain plate (18) is gradually reduced in the material pressing interval from the low-pressure material pressing section to the high-pressure material pressing section, the upper chain plate (5) is parallel to the lower chain plate (18) in the material pressing interval from the high-pressure maintaining material pressing section, each material pressing section is provided with a pressure adjusting mechanism, each pressure adjusting mechanism comprises an adjusting seat (31) capable of moving up and down, the adjusting seats (31) are used for adjusting the space between the upper chain plate (5) and the lower chain plate (18) of each material pressing section, a material pressure relief area is arranged in the space between every two adjacent material pressing sections in each material pressing area, the space between the upper chain plate (5) and the lower chain plate (18) in each material pressure relief area is kept unchanged, namely, the upper chain plate (5) in each material pressure relief area does not follow the adjusting seats (31) of the pressure adjusting mechanisms Is used for conveying the materials to the material inlet (A).
2. The material dehydrator capable of continuously feeding and discharging and adjusting pressure according to claim 1, wherein the upper chain plate (5) is wound on an upper chain plate driving wheel (10) and an upper chain plate adjusting wheel (14), the lower chain plate (18) is wound on a lower chain plate driving wheel (23) and a lower chain plate adjusting wheel (26), the upper chain plate driving wheel (10), the upper chain plate adjusting wheel (14), the lower chain plate driving wheel (23) and the lower chain plate adjusting wheel (26) are mounted on the frame (4), an upper stressed plate frame (6) mounted on the frame (4) and used for bearing the pressure of the upper chain plate (5) is arranged between the upper chain plate driving wheel (10) and the upper chain plate adjusting wheel (14), a lower stressed plate frame (19) mounted on the frame (4) and used for bearing the pressure of the lower chain plate (18) is arranged between the lower chain plate driving wheel (23) and the lower chain plate adjusting wheel (26), the pressure adjusting mechanism is arranged between the upper stressed plate frame (6) and the upper chain plate (5), and is positioned below the upper stressed plate frame (6).
3. The material dehydrator capable of continuously feeding and discharging materials and adjusting pressure according to claim 2, wherein the pressure adjusting mechanism further comprises an adjusting cushion (33) and a guide shaft (35) which are hollow inside and can be filled with hydraulic oil or water, the adjusting cushion (33) is positioned above the adjusting base (31), the adjusting cushion (33) of each pressure adjusting mechanism is communicated with a corresponding limiting oil cylinder (38), the limiting oil cylinder (38) is connected with a constant pressure control system (39), the constant pressure control system (39) controls the volume of the hydraulic oil or water filled into the adjusting cushion (33) through the limiting oil cylinder (38) so as to control the upper and lower displacement of the adjusting base (31), the lower end of the guide shaft (35) is fixedly connected with the adjusting base (31), the upper stress plate frame (6) is a rectangular box body which is hollow inside and is provided with a rib plate, the upper end sliding connection of guiding axle (35) be in last atress sheet frame (6) in, just guiding axle (35) in the upper end cup joint have be used for making guiding axle (35) spring (36) that reset, spring (36) upper end top connect guiding axle (35), spring (36) lower extreme top connect last atress sheet frame (6).
4. The material dehydrator capable of continuously feeding and discharging materials and adjusting pressure according to claim 3, wherein the surface of the upper chain plate (5) is covered with an upper water passing rubber mat (8), the surface of the lower chain plate (18) is covered with a lower water passing rubber mat (21), and the upper water passing rubber mat (8) and the lower water passing rubber mat (21) are provided with drainage gaps passing through two ends of the upper chain plate (5) or the lower chain plate (18) in the moving direction.
5. The material dehydrator capable of continuously feeding and discharging materials and adjusting pressure as claimed in claim 4, wherein the upper water passing rubber mat (8) is provided with a plurality of segmented limiting grooves (8a), the segmented limiting grooves (8a) are uniformly distributed on the upper water passing rubber mat (8), the lower water passing rubber mat (21) is provided with a plurality of segmented limiting bosses (21a) matched with the segmented limiting grooves (8a) in shape, and the segmented limiting bosses (21a) are uniformly distributed on the lower water passing rubber mat (21).
6. The material dehydrator capable of continuously feeding and discharging materials and adjusting pressure as claimed in claim 5, wherein at least one layer of upper filter cloth belt (9) is further arranged on the outer side of the upper water filtering rubber mat (8), the upper filter cloth belt (9) is wound on an upper filter cloth belt driving wheel (12) and an upper filter cloth belt adjusting wheel (15), and the upper filter cloth belt (9) and the upper chain plate (5) move synchronously;
the outer side of the lower water passing rubber mat (21) is also provided with at least one layer of lower filter cloth belt (22), the lower filter cloth belt is wound on a lower filter cloth belt driving wheel (24) and a lower filter cloth belt adjusting wheel (27), and the lower filter cloth belt (22) and the lower chain plate (18) move synchronously;
when the material is dehydrated, water is filtered by the upper filter cloth belt and the lower filter cloth belt and then flows to the two ends of the upper chain plate or the lower chain plate in the motion direction through the drainage gaps of the upper water passing rubber pad and the lower water passing rubber pad respectively.
7. The material dewatering machine capable of continuously feeding and discharging and adjusting pressure as claimed in claim 6, wherein the upper filter cloth belt driving wheel (12) and the lower filter cloth belt driving wheel (24) are both located at a material outlet (B) of the material pressing area, a hopper (30) is placed below the material outlet (B), and the upper filter cloth belt driving wheel (12) and the lower filter cloth belt driving wheel (24) are both provided with a dirt scraping plate.
8. The material dehydrator capable of continuously feeding and discharging materials and adjusting pressure according to any one of claims 1 to 7, wherein the feeding mechanism comprises a stirring barrel (1), a material conveying device (2) and a material leveling box (3), wherein an inlet of the material conveying device (2) is connected with an outlet of the stirring barrel (1), an outlet of the material conveying device (2) is connected with an inlet of the material leveling box (3), and an outlet of the material leveling box (3) is located at the material inlet (A) of the material pressing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010048957.9A CN111111293B (en) | 2020-01-16 | 2020-01-16 | Material dehydrator capable of continuously feeding and discharging materials and adjusting pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010048957.9A CN111111293B (en) | 2020-01-16 | 2020-01-16 | Material dehydrator capable of continuously feeding and discharging materials and adjusting pressure |
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| CN111111293B true CN111111293B (en) | 2022-03-08 |
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| CN209128291U (en) * | 2018-11-05 | 2019-07-19 | 刘炳章 | A kind of high pressure belt mud dewatering equipment |
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